my son is five years older than my second born. no bc, no condoms, nothing during those in between years yet didn't get pregnant. had an appt on May 10th of 2007 to find out what was wrong with me....that's the day I found out I was pregnant
SO and his ex wife tried for 2 years and nothing. No explanation as to why, just didn't get pregnant.
SO and I got pregnant on accident when I was misinformed that I was unable to ever have children. I was off my pill because it made me anemic, and I got the news of being basically infertile, so we didn't worry about pulling out. 2 months later... BAM, DD was conceived.
SO's ex, she and her BF had a birth control pill failure, and got pregnant, and she had her baby in November. So sometimes it takes a while, sometimes circumstances are just right and stuff happens.
with my first i got pregnant almost instantly. it's been over two years now of using no BC or condoms, and i haven't gotten pregnant yet. we could probably be trying harder...but i don't want to put pressure on it.